Tool for foemim bottle necks



(No Model.)

H; L. PHILLIPS.

TOOL FOR FORMING BOTTLE 'NEGKS. No 442,258. Patented Dec. 9, 1890;

HENRY LOUIS PHILLIPS,

PATENT OFFICE...

OF LONDON, ENGLAND.

TOOL FOR FORMING BO'l'TLE-NECKS.

SPECIFICATION forming part of Letters Patent No. 442,258, dated December 9, 1890.

Application filed May 15, 1890, Serial No. 351,986. (No model.)

.To aZZ whom it may concern:

Be it known that I, HENRY LOUIS PHIL- LIPS, gentleman, a subject of the Queen of Great Britain, residing at London, England, have invented a new and useful Improvement in Tools for Forming Bottle-Necks, of which the following is a specification.

My invention relates to improvements in tools or tongs for making bottles with externally-screw-threaded necks.

My invention consists in a spring tool or tongs provided at its ends With rollers having screw threads of the required shape formed round them, and also provided with stops by which the said rollers are prevented from being brought too neartogether and the screwthread upon the neck of the bottle being thereby made of too small a diameter, and with a spring-catch by which the said rollers are held in position and are prevented from separating, and the screw-thread upon the neck of the bottle being thereby made of too large a diameter.

In the accompanying drawings, which are in illustration of my invention, Figure l is a front view showing the screwthreaded rollers separated to their fullest extent. Fig. 2 is a top view of the same, and Fig. 3 a bottom view of the same. Fig. a is a similar view to Fig. 1, but showing the screw-threaded rollers brought together to the exact position required to give the required diameter to the screw-thread upon the neck of the bottle and locked securely in that position. Fig. 5 is a top view of Fig. 4, and Fig. 6 is a side view of Fig. at. Fig. 7 is a separate view of the lockin g device by which the screw-threaded rollers are held in their proper position and prevented from separating.

Similar letters of reference indicate the same parts in the several figures.

0. I) represent the two arms of the tongs, which are united together by the spring-bow at c, in order to give them the required elasticity and tendency to separate. The ends of the arms and b are made preferably square or rectangular in section at (Z 6, and at their outer ends are formed cylindrical pins or pivots fg, upon which the rollers 71 iof equal size turn freely. Upon each of these rollers 7:. 1 ,1 form a screw-thread of the size,

shape, and pitch required, the screw-threads being left-handed if it is required that the one upon the neck of the bottle should be right-handed, and vice versa.

7; are rings or washers placed below or formed upon the screw threaded rollers 7L 1', their edges being hollowed or so shaped as to give the desired shape to the lip of the mouth of the bottle, and the upper part of the rollers 7L 2' may be left, as shown, without screw threads, and may be so shaped as to give the desired form to the exterior neck of the bottle below the screw-thread.

Zis a central cylindrical rod, the lower end of which is fixed by adjustable nuts in the spring-bow c of the tongs, while its upper end carries a tapered metal plug on, which enters the neck of the bottle and forms the mouth.

a is a metal guiding-plate fixed upon the rod Z below the plug m, and having radial slots 0 0, which serve as guides to the rectangular ends (I and e of the arms a and b, the bottom of the slots 0 0 being so situated that when the arms a and b are brought together against them the rollers h and i are in the exact position required to form the screwthread upon the neck of the bottle of the required diameter. A disk or swiller is shown at p fixed upon or forming part of the plate 71 and strengthening the latter. The edge of the mouth of the bottle will be formed against this plate or.

The rod l has fitted freely upon it a tube q, the upper end of which has fixed upon it a double catch or lockin g-plate r, as shown separately in Fig. 7, the ends 3 s of which are of such shape that when the ends of the arms 0. and Z) are brought together against the bottoms of the slots 0 0 the plate '2' can turn upon its center, and its ends 5 s engage with and hold the arms firmly together, as shown in Fig. 7, so that they can then neither move inward nor outward. To insure the ends 8 s so engaging with the arms, the lower end of the tube 1) is provided with a spring I, one end of which is fixed to it and the other end to the rod 1, so that its tendency is constantly to bring the ends 8 8 into the position shown in Fig. 7. u is a projecting piece or lever upon the lower end of the tube p, by pressing which with his finger the workman can turn the plate and ICO bring the ends 8 8 into the position shown in Fig. 3,when the arms ab are released and open out into the position shown in Figs. 1 and 2.

The operator holds my improved tongs in his right hand, the bottle being held by a punty or gage in the usual manner and .rolled upon a flat surface or table with the left hand, the plug m entering the mouth, and the two tools are simultaneously moved backward and forward in the same plane a sufficient number of times. The rotation of the bottle upon the plug on causes the two rollers h i when brought in contact with the bottleneck also to rotate and to impress the screwthread upon its upper end. Vhen the rollers h t have been brought together by the pressure of the workmans hand until the arms (Z 6 reach the bottoms of the slots 0 0, the screwthread upon the bottle-neck has been reduced to exactly its required diameter, and at the same time the catches s s automatically retai n the arms (Z c, and preventthem from separating, while the workman continues to roll the bottle, as described, until it is completed, and he then presses back the lever 14, releasing the catches s s and allowing the arms a Z) and the rollers h and 2' to separate, and the finished bottle can then be removed.

Instead of complete screw-threads being formed upon the rollers h 2', other devices may be formed upon themas, for instance,'parts of screw-threads with vertical grooves, so as to form what is known as a bayonet-joint upon the neck of the bottle, and in such case one of the rollers h or i may be left plain.

A projecting lever u may be placed upon both sides of the tube 1).

My invention is applicable for making an external screw-thread upon the neck or mouth of bottles, pots, jars, and other hollow vessels, and also for shaping and forming the lips or external parts of the mouths of such vessels while in a plastic state.

By my invention a perfect screw-thread is formed upon the necks of bottles of the exact size required, and the operator is enabled to work with much greater ease and comfort, owing to the absence of any necessity for continued pressure of his hand upon the tongs.

It is evident that slight changes may be made in the construction and shape of the several parts described without departing from the scope of my invention; nor do I limit myself exactly to the construction herein set forth and shown; but,

Having fully described my inventiomwhat I claim as new, and desire to secure by Letters Patent, is

1. In tongs for forming bottle-necks, the combination of the spring-arms a b, screwthreaded rollers 71- i, pinsfg, pl ugm, and guideplate 11 with the central rod I, tube 1;, lockingplate '7, and catches s S, substantially as set forth.

2. In tongs for forming bottle-necks, the combination of the spring-arms a 1 pins f g, rollers h 1', central rod Z, plug on, guide-plate n, tube 19, locking-plate r, and catches s s with the spring t and lever to, substantially as set forth.

In witness whereof I have hereunto set my hand in the presence of two subscribing witnesses.

' HENRY LOUIS PHILLIPS.

\Vitnesses:

\V. A. RIDG-VVAY, ALEX. RIDGWAY. 

